Multisource model and stochastic properties of multiparticle production in high-energy nucleus-nucleus collisions

Liu Lian-sou; Meng Ta-chung; Pan Ji-cai; Peng Hong-an

doi:10.1103/PhysRevD.38.3405

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Multisource model and stochastic properties of multiparticle production in high-energy nucleus-nucleus collisions

Liu Lian-sou, Meng Ta-chung, Pan Ji-cai, and Peng Hong-an

Fachbereich Physik der Freien Universität Berlin, Berlin, West Germany

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Phys. Rev. D 38, 3405 – Published 1 December, 1988

DOI: https://doi.org/10.1103/PhysRevD.38.3405

Abstract

Stochastic properties of multiparticle production processes in high-energy heavy-ion reactions, especially those connected with the multisource model are discussed. The concept of number of effective sources (NES) is deduced from the multisource model; and the existence of a new kind of scaling (NES scaling) is shown. Transverse-energy distributions for different projectile-target combinations at different incident energies are calculated. The obtained results are compared with the recent data. Some new experiments are suggested.

References (16)

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WA80 Collaboration: see, e.g., G. Claesson, in Proceedings of the European Physical Society High Energy Physics Conference [International Europhysics Conference on High Energy Physics] (Ref. 1); H. A. Gustavsson, ibid; H. Lvhner, ibid; H. H. Gutbrod, in Proceedings of the 18th International Symposium on Multiparticle Dynamics, Tashkent, USSR, 1987 edited by I. Dremin and K. Giulamov (World Scientific, Singapore, 1988), p. 381; R. Albrecht et al., Phys. Lett. B 201, 390 (1988); , ibid. 202, 596 (1988).
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See, e.g., the papers on quark-gluon plasma in Refs. 1 – 5.
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Meng Ta-chung, in Multiparticle Production on Nuclei at Very High Energies, proceedings of the Trieste Topical Meeting, 1976, edited by G. Bellini, L. Bertocchi, and P. G. Rainciote (International Centre for Theoretical Physics, Trieste, 1976), p. 435; Phys. Rev. D 15, 197 (1977) Meng Ta-chung, and E. Moeller, Phys. Rev. Lett. 41, 1352 (1978); Meng Ta-chung, ibid. 42, 1331 (1979).
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See, e.g., R. D. Evens, The Atomic Nucleus (McGraw-Hill, New York, 1969), p. 30.
The geometrical picture for elastic and diffractive hadron-hadron collisions [T.T. Chou and C. N. Yang, Phys. Rev. 170, 1591 (1968); 175, 1832 (1968)] can be, and has already been extended to include nondiffractive hadron-hadron processes [see T. T. Chou and C. N. Yang, Phys. Lett. 116B, 301 (1982); S. Barshay, ibid. 42B, 457 (1972); A. Bialas and E. Bialas, Acta Phys. Pol. B5, 373 (1974); and S. Barshay and Y. Yamaguchi, S. GeerPhys. Lett. 51B, 376 (1974)]. In fact, the impact-parameter dependence can be obtained from empirical multiplicity distributions, as Chou and Yang have shown in Fig. 1 of their 1982 paper. Note that, since transverse energy $E_{t}$ and charge multiplicity n are directly proportional to each other [see, e.g., the UA1 data presented by , An. Fis. A 79, 94 (1983), and references given therein], the curve in the above-mentioned figure also gives the impact-parameter dependence of the transverse energy.
Pan Ji-cai, Freien Universität Berlin thesis (in preparation).
Chao Wei-qin, Meng Ta-chung, and Pan Ji-cai, Phys. Rev. D 35, 152 (1987) Phys. Rev. Lett. 58, 1399 (1987).
UA5 Collaboration, K. Alpgard et al., Phys. Lett. 123B, 361 (1983).

[c1] NA35 Collaboration: see, e.g., W. Heck, in Proceedings of the X Warsaw Symposium on Elementary Particle Physics, Kazimierz, Poland, 1987, edited by Z. Ajdúk (Warsaw University Press, Warsaw, 1988), p. 553; A. Bamberger et al., Phys. Lett. B 184, 271 (1987); T. H. Humanic, in Proceedings of the European Physical Society High Energy Physics Conference, Uppsala, Sweden, 1987, edited by O. Botner (European Physical Society, Geneva, Switzerland, 1987); W. Heck, in Proceedings of the Quark Matter 87 Conference, Nordkirchen, West Germany, 1987; A. Bamberger et al., [Z. Phys. C 38, 19 (1988)]; (private communication).

[c2] HELIOS Collaboration: see, e.g., T. Akesson, in Proceedings of the European Physical Society High Energy Physics Conference [International Europhysics Conference on High Energy Physics] (Ref. 1); U. Goerlach, ibid.; W. Willis, ibid; T. Akesson et al., CERN Report No. EP/87-176 (unpublished).

[c3] WA80 Collaboration: see, e.g., G. Claesson, in Proceedings of the European Physical Society High Energy Physics Conference [International Europhysics Conference on High Energy Physics] (Ref. 1); H. A. Gustavsson, ibid; H. Lvhner, ibid; H. H. Gutbrod, in Proceedings of the 18th International Symposium on Multiparticle Dynamics, Tashkent, USSR, 1987 edited by I. Dremin and K. Giulamov (World Scientific, Singapore, 1988), p. 381; R. Albrecht et al., Phys. Lett. B 201, 390 (1988); , ibid. 202, 596 (1988).

[c4] EMU 01 Collaboration: see, e.g., A. Bahasin, in Proceedings of the European Physical Society High Energy Physics Conference (Ref. 1); M. I. Adamovich et al., Phys. Lett. B 201, 347 (1988).

[c5] See, e.g., P. L. Jain et al., Phys. Rev. Lett. 59, 2531 (1987); G. Gerbier et al., ibid. 59, 2535 (1987); NA36 Collaboration, P. D. Barnes et al., CERN Report No. EP/87-209 (unpublished); L. M. Barbier et al., Phys. Rev. Lett. 60, 405 (1988).

[c6] See, e.g., the papers on quark-gluon plasma in Refs. 1 – 5.

[c8] Cai Xu, Chao Wei-qin, and Meng Ta-chung, Phys. Rev. D 36, 2009 (1987) Liu Lian-sou, Meng Ta-chung, and Peng Hong-an, ibid. 37, 3327 (1988).

[c9] Liu Lian-sou and Meng Ta-chung, Phys. Rev. D 27, 264 (1983) Chou Kuang-chao, Liu Lian-sou, and Meng Ta-chung, ibid. 28, 1080 (1983) Cai Xu et al., ibid. 33, 1287 (1987).

[c10] Meng Ta-chung, in Multiparticle Production on Nuclei at Very High Energies, proceedings of the Trieste Topical Meeting, 1976, edited by G. Bellini, L. Bertocchi, and P. G. Rainciote (International Centre for Theoretical Physics, Trieste, 1976), p. 435; Phys. Rev. D 15, 197 (1977) Meng Ta-chung, and E. Moeller, Phys. Rev. Lett. 41, 1352 (1978); Meng Ta-chung, ibid. 42, 1331 (1979).

[c11] Berlad, Dar, and Eilam (Ref. 7); Fredriksson (Ref. 7).

[c12] See, e.g., R. D. Evens, The Atomic Nucleus (McGraw-Hill, New York, 1969), p. 30.

[c13] The geometrical picture for elastic and diffractive hadron-hadron collisions [T.T. Chou and C. N. Yang, Phys. Rev. 170, 1591 (1968); 175, 1832 (1968)] can be, and has already been extended to include nondiffractive hadron-hadron processes [see T. T. Chou and C. N. Yang, Phys. Lett. 116B, 301 (1982); S. Barshay, ibid. 42B, 457 (1972); A. Bialas and E. Bialas, Acta Phys. Pol. B5, 373 (1974); and S. Barshay and Y. Yamaguchi, S. GeerPhys. Lett. 51B, 376 (1974)]. In fact, the impact-parameter dependence can be obtained from empirical multiplicity distributions, as Chou and Yang have shown in Fig. 1 of their 1982 paper. Note that, since transverse energy $E_{t}$ and charge multiplicity n are directly proportional to each other [see, e.g., the UA1 data presented by , An. Fis. A 79, 94 (1983), and references given therein], the curve in the above-mentioned figure also gives the impact-parameter dependence of the transverse energy.

[c14] Pan Ji-cai, Freien Universität Berlin thesis (in preparation).

[c15] Chao Wei-qin, Meng Ta-chung, and Pan Ji-cai, Phys. Rev. D 35, 152 (1987) Phys. Rev. Lett. 58, 1399 (1987).

[c16] UA5 Collaboration, K. Alpgard et al., Phys. Lett. 123B, 361 (1983).

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Multisource model and stochastic properties of multiparticle production in high-energy nucleus-nucleus collisions

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